<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style>
			body{
				background-color: blue;
			}
			.box11:hover{
				box-shadow: 0px 0px 100px yellow,0px 0px 0px yellow,0px 0px 0px yellow; 
			}
			p{
			width:400px;
			height: 400px;
			background-color: white;
			margin: 200px;
			border-radius: 100%;
			box-shadow: 0px 0px 100px yellow,0px 0px 100px yellow,0px 0px 350px blueviolet;
					}
		</style>
	</head>
	<body>
		<p></p>
	</body>
</html>
